Abstract: Apparatus, devices and methods including apparatus for aftertreatment for a diesel engine, optionally including: a housing having an inlet, an outlet and defining a cavity therein; a plurality of tubes mounted within the cavity and arranged to define a multi-flow split arrangement to pass an exhaust flow of the diesel engine through each of the plurality of tubes; and a plurality of treatment units configured to treat the exhaust flow within the housing, wherein each of the plurality of treatment units is coupled within a corresponding one of the plurality of tubes to receive a portion of the exhaust flow. A number of the plurality of treatment units utilized to treat the exhaust flow within the housing is less than a number of the plurality of tubes such that at least one of the plurality of tubes does not contain one of the plurality of treatment units.

Abstract: A method and system for treating engine exhaust gas of an engine system is disclosed. The method includes generating ammonia from a urea supply, supplying the ammonia to the engine exhaust gas upstream of a catalyst device, and supplying urea to the engine exhaust gas downstream of the supplying of the ammonia, and downstream of the catalyst device.

Abstract: A method and system for treating engine exhaust gas of an engine system is disclosed. The method includes generating ammonia from a urea supply, suppling the ammonia to the engine exhaust gas upstream of a catalyst device, and supplying urea to the engine exhaust gas downstream of the supplying of the ammonia, and downstream of the catalyst device.

Abstract: An air intake system for directing intake air to an internal combustion engine of a machine is disclosed. The air intake system may comprise an air compressor configured to increase a pressure of the intake air, and a membrane unit downstream of the air compressor and having a membrane with selectivity for siloxanes. The membrane may have a first side and a second side, and the first side may be exposed to a higher pressure than the second side when the air compressor is operating. The membrane may be configured to separate the intake air into a permeate that traverses the membrane from the first side to the second side, and a retenate that remains on the first side. The permeate may have a higher siloxane content than the retenate. The retenate may be directed to the internal combustion engine for combustion.

Abstract: An air intake system for directing intake air to an internal combustion engine of a machine is disclosed. The air intake system may comprise an air compressor configured to increase a pressure of the intake air, and a membrane unit downstream of the air compressor and having a membrane with selectivity for siloxanes. The membrane may have a first side and a second side, and the first side may be exposed to a higher pressure than the second side when the air compressor is operating. The membrane may be configured to separate the intake air into a permeate that traverses the membrane from the first side to the second side, and a retenate that remains on the first side. The permeate may have a higher siloxane content than the retenate. The retenate may be directed to the internal combustion engine for combustion.

Abstract: An adsorber assembly for separating contaminants, such as siloxanes, from air is provided. The adsorber assembly includes a housing having an inlet and an outlet. The adsorber assembly also includes at least one separation module stacked within the housing. The at least one separation module includes a first cartridge having a first filter media configured to separate contaminants from the air and a second cartridge having a second filter media configured to separate contaminants from the air. The second cartridge and the first cartridge define a flow path between the first filter media and the second filter media. The flow path is in fluid communication with the inlet of the housing. The present disclosure also provides an air intake system equipped with the adsorber assembly.

Abstract: An exhaust system for a diesel engine is provided. The exhaust system includes a component body with a surface, and a surface treatment disposed on some of the surface or all of the surface. The surface treatment is disposed so as to receive Diesel Exhaust Fluid (DEF) injected into the exhaust system during operation of the diesel engine. The surface treatment facilitates increased heat transfer to the received DEF to promote water evaporation and urea thermolysis of the received DEF.

Abstract: A method for cleaning an exhaust filter system is provided. The method includes removing ash from a first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method also includes entraining particles from a second end of the exhaust particulate filter system using low pressure air. The method further includes blowing ash from the first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method further includes removing the entrained particles from the second end of the exhaust particulate filter system.

Abstract: An air intake system for an engine is provided. The air intake system includes a first air intake conduit, a second air intake conduit, an exhaust conduit, and a valve. The first air intake provides air to the engine and includes a siloxane adsorber. The second air intake conduit provides air to the engine during regeneration of the siloxane adsorber. The siloxane adsorber is heated during regeneration. The exhaust conduit is selectively connected to the first air intake conduit downstream of the siloxane adsorber. The valve is configured to connect the first intake conduit to the exhaust conduit during regeneration of the siloxane adsorber.

Abstract: An exhaust system for a diesel engine is provided. The exhaust system includes a component body with a surface, and a surface treatment disposed on some of the surface or all of the surface. The surface treatment is disposed so as to receive Diesel Exhaust Fluid (DEF) injected into the exhaust system during operation of the diesel engine. The surface treatment facilitates increased heat transfer to the received DEF to promote water evaporation and urea thermolysis of the received DEF.

Abstract: An air intake system for an engine is provided. The air intake system includes a first air intake conduit, a second air intake conduit, an exhaust conduit, and a valve. The first air intake provides air to the engine and includes a siloxane adsorber. The second air intake conduit provides air to the engine during regeneration of the siloxane adsorber. The siloxane adsorber is heated during regeneration. The exhaust conduit is selectively connected to the first air intake conduit downstream of the siloxane adsorber. The valve is configured to connect the first intake conduit to the exhaust conduit during regeneration of the siloxane adsorber.

Abstract: A method for cleaning an exhaust filter system is provided. The method includes removing ash from a first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method also includes entraining particles from a second end of the exhaust particulate filter system using low pressure air. The method further includes blowing ash from the first end of the exhaust particulate filter system using compressed air from the second end of the exhaust particulate filter system. The method further includes removing the entrained particles from the second end of the exhaust particulate filter system.

Abstract: An exhaust system including an upstream portion, a downstream portion, a service access, and a silica filter defines an exhaust gas flow path. The downstream portion includes an aftertreatment component. The service access is between the upstream portion and the downstream portion. The silica filter includes a silica filter element and a housing enclosing the silica filter element. The housing includes a filter gas inlet and a filter gas outlet, and defines a filter flow path through the silica filter element between the filter gas inlet and the filter gas outlet. The silica filter element is configured to filter silica from exhaust gases of the engine and structured to create a uniform distribution of silica throughout the silica filter element. The silica filter is configured to be removed and replaced through the service access. The exhaust gas flow path includes the filter flow path.

Abstract: An exhaust system including an upstream portion, a downstream portion, a service access, and a silica filter defines an exhaust gas flow path. The downstream portion includes an aftertreatment component. The service access is between the upstream portion and the downstream portion. The silica filter includes a silica filter element and a housing enclosing the silica filter element. The housing includes a filter gas inlet and a filter gas outlet, and defines a filter flow path through the silica filter element between the filter gas inlet and the filter gas outlet. The silica filter element is configured to filter silica from exhaust gases of the engine and structured to create a uniform distribution of silica throughout the silica filter element. The silica filter is configured to be removed and replaced through the service access. The exhaust gas flow path includes the filter flow path.

Abstract: A method for testing a condition of a catalyst is provided. The method includes providing a gas source in communication with the catalyst. The method also includes passing compressed gas from the gas source over the catalyst at normal operating temperature. The method further includes invoking a reaction with the catalyst based on the passage of the compressed gas. The method includes measuring a performance of the catalyst based on the reaction.

Abstract: An exhaust aftertreatment system for an engine is provided. The exhaust aftertreatment system includes an exhaust duct, at least one of a diesel particulate filter and a diesel oxidation catalyst, a selective catalytic reduction (SCR) catalyst, and at least one siloxane filter. The at least one siloxane filter is positioned upstream of the exhaust aftertreatment system. The at least one siloxane filter is configured to filter siloxanes from exhaust gases and is structured to create a uniform distribution of siloxanes throughout the at least one siloxane filter.